Computing-measure.



Patented -June 26, |9oo.` G. AH. MITCHELL.

cumPuTlNa MEASURE.

(Appl-cation med Feb. 16, 1900.)

(llol Model.)

Tu: Nonms PErz'w maremma.. WASHINGTON. n. c.

ing yard-measure.

UNITED STATES EliminarA Fries.

GEORGE MITCHELL, OE CHALESTON, MISSOURI, ASSIGNOR OF ONElHALF TO WILLIAM P. WRIGHT, OE SAME PLACE.

coM'PuT-lNc-ivi EASURE.

SPECIFICATION forming part of Letters `Patent No.'6521,'722, dated June 26, 1900.

Y Application led February 1d, 1900.' Serial No. 5,507. (No model.)

To LLZZ whom, t mayrconcern:

Beit known that I, GEORGE H. MITCHELL, a citizen of the United States, residing at Charleston, in the county of Mississippi and State of Missouri, have invented a new and useful Computing-Measure, of which the fol-Y mark indicating the quantity of the material measured.

A further object of the invention is to arrange the columns so that the price of a piece of material from an inch to a yard may be readily ascertained Without the use of the measure or Without laying oit the material on the measure.

The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claim hereto appended.

In the drawings, Figure 1 isa plan view of a computing yard-measure constructedin acf cordance With this invention. Fig. 2 is an enlarged plan view of one end of the comput- Like numerals of reference designate vcorresponding parts in both igures of the drawings.

1 designates a computing yard-measure adapted to be arranged in the form of a yardstick, or it may be constructed in the form of a strip or bar and inlaid or mortised in a shopcounter. The computing vyard measure is provided at one of its longitudinal edges with inch-graduations 2, and it is provided with transverse columns or spaces 3, arranged at right angles to the yard-measure formed by the inchgraduations 2. These transverse columns or spaces, which are an inch Wide, agree With the inchgraduations 2, and the lcomputingmeasure`is provided at its other longitudinal edge With numbers 4, indicating the price per yard of dry goods or other nia-v terial designed to be measured and sold in connection with the computing yard-measure.' The space between the price-per-yard numeral and the inch-graduations in each of 'the transverse columns is divided into a series ofv thirty-six small spaces, and a series of :numerals 5 is arranged 'consecutively from "l to36 at one side of the transverse Column and represent or correspond with the inches of the yard-measure.

lfigures 6, indicating the price of the material lfrom one inch to thirty-six inches, calculated .on a basis of the price-per-yard'indicator at the head of the column. For instance, take the column at the right-hand end of the meas- 7o ure. The price per yard indicated at the head of the column is one dollar and eighty cents andthe figures indicating the price from one inch to thirty-six inches are obtained by dividing one hundred and eighty by thirty-six. The result, which is live, 4indicates the cost of one inch of material selling for one dollar and eighty cents a yard and is placed opposite the numeral 1, as clearly shown in Fig. 2 of the accompanying draw- 8o lngs. The other igures of the column 6 are obtained by multiplying the number of inches by tive, as Will be readily apparent. The price per yard increases in regular arithmetical progression, the second column from the 8 5 right-hand end being calculated on a basis of one dollar and seventy-live cents per yard, the third column from the end on a basis of one dollar and seventy cents per yard, and so on to the column at the left-hand end. By 9c this arrangement the price of any number of inches can be readily ascertained at any price per yard on the scale by consulting the column opposite to the price per yard and reading the amount opposite the number indicatingthe inches. y

In laying off material on the measure the price of the quantity may be ascertained from the column of iigures opposite the inch-grad nations or corresponding to the same by referring to the last column. For instance, suppose the quantity of material measured is Atthe other4 y side of each transverse col-umnis a series of 65 thirty inches. By referring to the Iigures of column No. 6 for the price per yard-say one dollar and eighty cents-and the corresponding numeral of the series 5, which is 36, and reading the amount opposite the numeral 3G of the column 3 at the thirty-inch mark it will be seen that the cost, one dollar and fty cents, may be quicklyascertained. Take another example. Suppose that the quantity of material measured off is thirty-four inches and the price of the material is one dollar and lifty cents per yard. The numeral opposite the one-dollar-and-ifty-cents space of the end column 3 is 30, and by reading the number opposite the numeral 30 of the column 3 at the point measured, the thirty-four-inch mark, the amount, one dollar and forty-one cents and a fraction, is found. This can be verified by the numbers of the one-dollar-andfifty cents column of figures, thirty four inches costing one dollar and forty-one cents and a fraction. In computing the Iigures of the various columns the fractions in many instances have been approximated; but absolute accuracy may be readily obtained Where it is necessary or desirable, and in most instances the scale will be prepared with reference to the commercial custom of rejecting all fractions under a half of a cent and adding all fractions over a half of a cent.

It Will be seen that the computing yardmeasure is simple in its construction and arrangement, and by its arrangement the numbers are capable of a double use and greatly facilitate the sale of various kinds of material, such as dry goods and the like. tIt will also be apparent that the scale may be prepared with reference to any set of price-peryard scale or graduations wherein the numbers increase in arithmetical progression.

WVhat is claimed is- A computing yard-measure provided with inch-graduations and having transverse columns of igures arranged in pairs and corresponding to the inch-graduations, one of the columns of each pair or set consisting of numerals from l to 36 and the other column indicating the price in inches, a series of characters located at the head of the columns and indicating the price per yard, said characters and price-columns increasing in regular progression and the last pair or set of columns forming an index for the other columns and the figures of the latter agreeing with the figures of the former for enabling the price of a piece of material to be read at the point where the material is measured, substantially as described.

In testimony that I claim the foregoing as myown I have hereto aifixed my signature in the presence of two witnesses.

GEORGE H. MITCHELL.

Witnesses:

E. J. DEAL, O. W. JUsLYN. 

